Trigonometry is one of 9 topics in the Grade 10 Technical Mathematics CAPS syllabus, covered across 3 lessons on Study Vault. Below are real practice questions from this topic with full worked answers.
Sample practice questions
Easy
1. Which ratio defines tanθ in a right-angled triangle?
opposite / adjacent
opposite / hypotenuse
adjacent / hypotenuse
hypotenuse / opposite
Answer: opposite / adjacent — tan(theta) = opposite/adjacent, following SOH-CAH-TOA.
Easy
2. What is the reciprocal of cosθ called?
Secant
Cosecant
Cotangent
Inverse cosine
Answer: Secant — sec(theta) = 1/cos(theta) is called secant.
Medium
3. In a right-angled triangle, the side opposite a 30 degree angle is 5 and the hypotenuse is 10. Calculate sin(30°).
